CN109212659A - A kind of edge-type light guide plate and backlight module - Google Patents
A kind of edge-type light guide plate and backlight module Download PDFInfo
- Publication number
- CN109212659A CN109212659A CN201811031434.2A CN201811031434A CN109212659A CN 109212659 A CN109212659 A CN 109212659A CN 201811031434 A CN201811031434 A CN 201811031434A CN 109212659 A CN109212659 A CN 109212659A
- Authority
- CN
- China
- Prior art keywords
- light guide
- guide plate
- bottom plate
- plate
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011324 bead Substances 0.000 claims abstract description 33
- 239000011248 coating agent Substances 0.000 claims abstract description 18
- 238000000576 coating method Methods 0.000 claims abstract description 18
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 3
- 229910052753 mercury Inorganic materials 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 6
- 230000007423 decrease Effects 0.000 abstract description 4
- 239000013589 supplement Substances 0.000 abstract description 3
- 206010023126 Jaundice Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
- G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a kind of edge-type light guide plate and backlight modules, including backboard, light guide plate, reflector plate, radiating bottom plate, light emitting source and ceiling, the right end of the backboard is equipped with right angle protrusion, the radiating bottom plate is fixed on the lower section left side of right angle protrusion, the ceiling is pasted in the upper section left end of right angle protrusion, the reflector plate is pasted at the back side of light guide plate, the another side of the reflector plate is pasted on backboard, it is obliquely irradiated to the right by the second lamp bead and reflecting coating is cooperated to reflect, supplement the brightness of dark space between the first lamp bead gap, by site and protruding portion light is opened in entire light guide plate base internal communication, reflect the light far from light guide plate side adequately, it ensure that the uniformity of light, the brightness of light guide plate is improved by reflecting piece, further decrease the possibility of dark space appearance, pass through transparent protection Item resists light guide plate while guaranteeing that light passes through, and avoids damage to light emitting source.
Description
[technical field]
The present invention relates to the technical field of light guide plate and backlight module, especially a kind of edge-type light guide plate and backlight module
Technical field.
[background technique]
Backlight module is mainly assembled by components such as light emitting source, reflector plate, light guide plate, optical diaphragm and outline borders, due to
Liquid crystal itself does not shine, and the function of backlight module is the light source for being well-off brightness with being evenly distributed, wherein light guide plate
For where technology most important in backlight module and cost.In side entrance back module, light guide plate is by the flat of side incidence
Row light is converted into the planar light being emitted upwards, and light guide plate utilizes reflection of the light inside light guide plate base, issues light emitting source
Light comes in entire light guide plate base internal communication, and then light is scattered by the site layer using design in bottom surface, to go out
It penetrates.
However since there are gap, partially bright, adjacent two LED light of LED lamp bead position between the LED lamp bead of light emitting source
Often there is the region not covered by light in the position between pearl, show darker referred to as dark space, cause mould group incident side lamp shadow
Bad problem, the serious picture quality for influencing display device.Furthermore in the assembly of side entrance back module, often occur
The phenomenon that lamp bar is wounded by light guide plate, cause lamp bar shade, do not work, is rubescent, jaundice, dead lamp the problems such as.
[summary of the invention]
The object of the invention is to solve the problems of the prior art, a kind of edge-type light guide plate and backlight module are proposed,
It can obliquely be irradiated to the right by the second lamp bead and reflecting coating is cooperated to reflect, dark space is bright between the first lamp bead gap of supplement
Degree, opens light in entire light guide plate base internal communication by site and protruding portion, the density of site with light intensity
Distribution, is gradually reduced from centre to two sides, reflects the light far from light guide plate side adequately, ensure that the equal of light
Even property improves the brightness of light guide plate by reflecting piece, further decreases the possibility of dark space appearance, is being protected by transparent ceiling
Card light resists light guide plate while passing through, and avoids damage to light emitting source.
To achieve the above object, the invention proposes a kind of edge-type light guide plate and backlight modules, including backboard, leaded light
Plate, reflector plate, radiating bottom plate, light emitting source and ceiling, the right end of the backboard are equipped with right angle protrusion, and the radiating bottom plate is fixed
At right angle, the lower section left side of protrusion, the light emitting source are fixed on radiating bottom plate, and the ceiling is pasted in the upper of right angle protrusion
Duan Zuoduan, the right end of the light guide plate abut against ceiling, and the reflector plate is pasted in the back side of light guide plate, the reflector plate
Another side paste on backboard.
Preferably, the top surface of the light guide plate is light-emitting surface and is equipped with several protruding portions.
Preferably, the bottom surface of the light guide plate is reflective surface and is equipped with several sites, the site includes hexagonal site
And triangular net, the galvanized hexagonal wire mesh that the triangular net is distributed in the center of light guide plate and six triangular nets can be pieced together out
Point, site the arrangement such as honeycomb and density are gradually decreased with close to the two sides of light guide plate.
Preferably, the ceiling is transparent and internal equipped with several rectangular through-holes, two rectangles up and down
Spacing distance between through-hole is 1.2 to 1.5mm, the rectangular through-hole side wall with a thickness of 0.3 to 0.5mm.
Preferably, the radiating bottom plate includes the first bottom plate, the second bottom plate for being fixed on the first bottom plate both ends and inclination
Ground is fixed on the third bottom plate on the inside of the second bottom plate, and the light emitting source includes the first lamp bead and the second lamp bead, first lamp bead
It is fixed on the left side of the first bottom plate, second lamp bead is fixed on inclined third bottom plate, second lamp bead and horizontal plane
Between angle be 20 ° to 40 °, on first bottom plate in addition to be fixed with the first lamp bead place plating be equipped with reflecting coating.
Preferably, the reflecting coating is silver coating or mercury coating.
Preferably, the side of the light guide plate and the first lamp bead face.
Beneficial effects of the present invention: the present invention is obliquely irradiated to the right by the second lamp bead and reflecting coating is cooperated to reflect,
The brightness for supplementing dark space between the first lamp bead gap, makes light in entire light guide plate base internal communication by site and protruding portion
It opens, the density of site is gradually reduced with the intensity distribution of light from centre to two sides, obtains the light far from light guide plate side
Adequately reflection, ensure that the uniformity of light, and the brightness of light guide plate is improved by reflecting piece, further decrease dark space appearance
May, light guide plate is resisted while guaranteeing that light passes through by transparent ceiling, avoids damage to light emitting source.
Feature and advantage of the invention will be described in detail by embodiment combination attached drawing.
[Detailed description of the invention]
Fig. 1 is a kind of cut-away illustration of edge-type light guide plate and backlight module of the present invention；
Fig. 2 is the top view of the partial structurtes of a kind of edge-type light guide plate of the present invention and backlight module；
Fig. 3 is the structural schematic diagram of the site of the light guide plate of a kind of edge-type light guide plate of the present invention and backlight module.
In figure: 1- backboard, the right angle 11- protrusion, 2- light guide plate, 21- protruding portion, the site 22-, 221- hexagonal site, 222-
Triangular net, 3- reflector plate, 4- radiating bottom plate, the first bottom plate of 41-, the second bottom plate of 42-, 43- third bottom plate, 44- reflecting coating,
5- light emitting source, the first lamp bead of 51-, the second lamp bead of 52- and 6- ceiling.
[specific embodiment]
Refering to fig. 1, Fig. 2 and Fig. 3, a kind of edge-type light guide plate of the present invention and backlight module, including backboard 1, light guide plate 2,
The right end of reflector plate 3, radiating bottom plate 4, light emitting source 5 and ceiling 6, the backboard 1 is equipped with right angle protrusion 11, the radiating bottom plate
4 are fixed on the lower section left side of right angle protrusion 11, and the light emitting source 5 is fixed on radiating bottom plate 4, and the ceiling 6 is pasted straight
The upper section left end of angle protrusion 11, the right end of the light guide plate 2 abut against ceiling 6, and the reflector plate 3 is pasted in light guide plate 2
The back side, the another side of the reflector plate 3 pastes on backboard 1, and the top surface of the light guide plate 2 is light-emitting surface and is equipped with several prominent
Portion 21 out, the bottom surface of the light guide plate 2 is reflective surface and is equipped with several sites 22, and the site 22 includes 221 He of hexagonal site
Triangular net 222, the triangular net 222 is distributed in the center of light guide plate 2 and six triangular nets 222 can be pieced together out one
Hexagonal site 221, the arrangement of the site 22 such as honeycomb and density are gradually decreased with the two sides of close light guide plate 2, described
Ceiling 6 be it is transparent and it is internal be equipped with several rectangular through-holes, the spacing distance up and down between two rectangular through-holes is
1.2 to 1.5mm, the rectangular through-hole side wall with a thickness of 0.3 to 0.5mm, the radiating bottom plate 4 includes the first bottom plate 41, solid
It is scheduled on second bottom plate 42 at 41 both ends of the first bottom plate and is obliquely fixed on the third bottom plate 43 of 42 inside of the second bottom plate, the hair
Light source 5 includes the first lamp bead 51 and the second lamp bead 52, and first lamp bead 51 is fixed on the left side of the first bottom plate 41, and described second
Lamp bead 52 is fixed on inclined third bottom plate 43, and the angle between second lamp bead 52 and horizontal plane is 20 ° to 40 °, institute
It states in addition to the place plating for being fixed with the first lamp bead 51 is equipped with reflecting coating 44 on the first bottom plate 41, the reflecting coating 44 is silver
Coating or mercury coating, the side of the light guide plate 2 and 51 face of the first lamp bead.
The course of work of the present invention:
A kind of edge-type light guide plate of the present invention and backlight module during the work time, first lamp bead of the light from light emitting source 5
The side of 51 directive light guide plates 2 in parallel, while two the second lamp beads 52 are obliquely irradiated to the right, and light is made to be radiated at the first lamp
Hence into light guide plate 2 in the gap of pearl 51 and through the reflection of reflecting coating 44 on the first bottom plate 41, site 22 and protruding portion
21 make light sufficiently be scattered and come in entire light guide plate base internal communication and finally leave from light-emitting surface.
The present invention is obliquely irradiated to the right by the second lamp bead and reflecting coating is cooperated to reflect, between the first lamp bead gap of supplement
The brightness of dark space opens light in entire light guide plate base internal communication by site and protruding portion, and the density of site is with light
The intensity distribution of line, is gradually reduced from centre to two sides, reflects the light far from light guide plate side adequately, ensure that
The uniformity of light improves the brightness of light guide plate by reflecting piece, further decreases the possibility of dark space appearance, passes through transparent guarantor
Guard strip resists light guide plate while guaranteeing that light passes through, and avoids damage to light emitting source.
Above-described embodiment is the description of the invention, is not limitation of the invention, after any pair of simple transformation of the present invention
Scheme all belong to the scope of protection of the present invention.
Claims (7)
1. a kind of edge-type light guide plate and backlight module, it is characterised in that: including backboard (1), light guide plate (2), reflector plate (3),
The right end of radiating bottom plate (4), light emitting source (5) and ceiling (6), the backboard (1) is equipped with right angle protrusion (11), the heat dissipation bottom
Plate (4) is fixed on the lower section left side of right angle raised (11), and the light emitting source (5) is fixed on radiating bottom plate (4), the ceiling
(6) the upper section left end in right angle raised (11) is pasted, the right end of the light guide plate (2) abuts against ceiling (6), the reflection
Piece (3) is pasted at the back side of light guide plate (2), and the another side of the reflector plate (3) is pasted on backboard (1).
2. a kind of edge-type light guide plate as described in claim 1 and backlight module, it is characterised in that: the light guide plate (2)
Top surface is light-emitting surface and is equipped with several protruding portions (21).
3. a kind of edge-type light guide plate as described in claim 1 and backlight module, it is characterised in that: the light guide plate (2)
Bottom surface is reflective surface and is equipped with several sites (22), and the site (22) includes hexagonal site (221) and triangular net (222),
The galvanized hexagonal wire mesh that the triangular net (222) is distributed in the center of light guide plate (2) and six triangular nets (222) can piece together out
Point (221), site (22) arrangement is such as honeycomb and density is gradually decreased with the two sides close to light guide plate (2).
4. a kind of edge-type light guide plate as described in claim 1 and backlight module, it is characterised in that: the ceiling (6) is
It is transparent and it is internal be equipped with several rectangular through-holes, the spacing distance between two rectangular through-holes up and down be 1.2 to
1.5mm, the rectangular through-hole side wall with a thickness of 0.3 to 0.5mm.
5. a kind of edge-type light guide plate as described in claim 1 and backlight module, it is characterised in that: the radiating bottom plate (4)
Including the first bottom plate (41), it is fixed on second bottom plate (42) at the first bottom plate (41) both ends and is obliquely fixed on the second bottom plate
(42) the third bottom plate (43) on the inside of, the light emitting source (5) include the first lamp bead (51) and the second lamp bead (52), first lamp
Pearl (51) is fixed on the left side of the first bottom plate (41), and second lamp bead (52) is fixed on inclined third bottom plate (43), institute
Stating the angle between the second lamp bead (52) and horizontal plane is 20 ° to 40 °, in addition to being fixed with the first lamp on first bottom plate (41)
The plating of the place of pearl (51) is equipped with reflecting coating (44).
6. a kind of edge-type light guide plate as claimed in claim 5 and backlight module, it is characterised in that: the reflecting coating (44)
For silver coating or mercury coating.
7. a kind of edge-type light guide plate as claimed in claim 5 and backlight module, it is characterised in that: the light guide plate (2)
Side and the first lamp bead (51) face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811031434.2A CN109212659B (en) | 2018-09-05 | 2018-09-05 | Side income formula light guide plate and backlight unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811031434.2A CN109212659B (en) | 2018-09-05 | 2018-09-05 | Side income formula light guide plate and backlight unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109212659A true CN109212659A (en) | 2019-01-15 |
| CN109212659B CN109212659B (en) | 2020-10-20 |
Family
ID=64986372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811031434.2A Active CN109212659B (en) | 2018-09-05 | 2018-09-05 | Side income formula light guide plate and backlight unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109212659B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020191912A1 (en) * | 2019-03-28 | 2020-10-01 | 武汉华星光电技术有限公司 | Light guide plate and backlight module |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571264A (en) * | 2008-04-30 | 2009-11-04 | 上海广电Nec液晶显示器有限公司 | LED backlight module |
| CN102829443A (en) * | 2012-09-18 | 2012-12-19 | 深圳市华星光电技术有限公司 | Positioning device for optical membrane set, backlight module and liquid crystal display |
| CN103676321A (en) * | 2013-12-27 | 2014-03-26 | 深圳市华星光电技术有限公司 | Liquid crystal display device |
| CN103672620A (en) * | 2013-12-16 | 2014-03-26 | 深圳市华星光电技术有限公司 | Backlight module |
| US20160195674A1 (en) * | 2015-01-07 | 2016-07-07 | Radiant Opto-Electronics Corporation | Frame device for backlight module and backlight module |
| CN106989319A (en) * | 2014-05-23 | 2017-07-28 | 瑞仪(广州)光电子器件有限公司 | Back plate assembly and backlight module |
-
2018
- 2018-09-05 CN CN201811031434.2A patent/CN109212659B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571264A (en) * | 2008-04-30 | 2009-11-04 | 上海广电Nec液晶显示器有限公司 | LED backlight module |
| CN102829443A (en) * | 2012-09-18 | 2012-12-19 | 深圳市华星光电技术有限公司 | Positioning device for optical membrane set, backlight module and liquid crystal display |
| CN103672620A (en) * | 2013-12-16 | 2014-03-26 | 深圳市华星光电技术有限公司 | Backlight module |
| CN103676321A (en) * | 2013-12-27 | 2014-03-26 | 深圳市华星光电技术有限公司 | Liquid crystal display device |
| CN106989319A (en) * | 2014-05-23 | 2017-07-28 | 瑞仪(广州)光电子器件有限公司 | Back plate assembly and backlight module |
| US20160195674A1 (en) * | 2015-01-07 | 2016-07-07 | Radiant Opto-Electronics Corporation | Frame device for backlight module and backlight module |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020191912A1 (en) * | 2019-03-28 | 2020-10-01 | 武汉华星光电技术有限公司 | Light guide plate and backlight module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109212659B (en) | 2020-10-20 |
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Effective date of registration: 20200904 Address after: 518000 1-3 / F, 1-2 / F, 1-2 / F, C building, No. 4, Sanwei Industrial Zone, Sanwei community, Xixiang street, Bao'an District, Shenzhen City, Guangdong Province Applicant after: WAI CHI OPTOELECTRONIC Ltd. Address before: 310000 Room 1308, 13th Floor, 288 Jianguo South Road, Shangcheng District, Hangzhou City, Zhejiang Province (Trusteeship 128) Applicant before: HANGZHOU YOUWEN NETWORK TECHNOLOGY Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A side entry light guide plate and a backlight module Effective date of registration: 20210415 Granted publication date: 20201020 Pledgee: Shenzhen small and medium sized small loan Co.,Ltd. Pledgor: WAI CHI OPTOELECTRONIC Ltd. Registration number: Y2021440020015 |
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Date of cancellation: 20220610 Granted publication date: 20201020 Pledgee: Shenzhen small and medium sized small loan Co.,Ltd. Pledgor: WAI CHI OPTOELECTRONIC Ltd. Registration number: Y2021440020015 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Side entry light guide plate and backlight module Effective date of registration: 20221215 Granted publication date: 20201020 Pledgee: Ping An Bank Co.,Ltd. Shenzhen Branch Pledgor: WAI CHI OPTOELECTRONIC Ltd. Registration number: Y2022980027693 |